I have the model A which is the carbon fiber looking version. I used it to top off a bottle and to fill a few guns and after a few cycles the temp only cooled down to low 70's and freaked me out because it says do not go above 80*.. Somewhere in the description it said it only read in Celsius and it heated up to 80* super quick. After a few emails they explained that I had switched it to Fahrenheit and the change is to power it on and hold the compressor button for 5 seconds, on the count of 4 I saw a blink of the led each time I did it and can switch back and forth.. Now for the compressor itself... it's louder than I expected (not a big deal) fills guns in a short time from 150 bar to 200bar and works well for filling small bottles too. I believe it will fill some of the larger small bottles (1-2L maybe a little larger) just fine as well, as long as you monitor the temperature and let it cool properly.. If you want to fill scuba tanks or the like, this isn't for you, its inefficient for that task and it will take too long working in the upper temp range and shorten the life of the compressor. Overall, communication was good with responses by the next day, and so far it does exactly what I want and need it to do. I haven't tried the 12V hook up yet but at some point if I do I'll add to this and also after putting some time on it I'll add a longevity segment but on initial start up and use, I'm happy with this purchase.
Shade Tree Mechanic 
